increased coverage

test/test_species.py

@@ -35,6 +35,42 @@ def test_assign_functions_to_species():
         assert isinstance(spe.test_function, ufl.Argument)
 
 
+def test_species_repr_and_str():
+    """Test that the __repr__ and __str__ methods of the Species class returns the
+    expected string.
+    """
+    # create a species
+    species = F.Species("A")
+
+    # check that the __repr__ method returns the expected string
+    expected_repr = "Species(A)"
+    assert repr(species) == expected_repr
+
+    # check that the __str__ method returns the expected string
+    expected_str = "A"
+    assert str(species) == expected_str
+
+
+def test_implicit_species_repr_and_str():
+    """Test that the __repr__ and __str__ methods of the ImplicitSpecies class
+    returns the expected string.
+    """
+    # create two species
+    species1 = F.Species("A")
+    species2 = F.Species("B")
+
+    # create an implicit species that depends on the two species
+    implicit_species = F.ImplicitSpecies(3.0, [species1, species2], name="C")
+
+    # check that the __repr__ method returns the expected string
+    expected_repr = f"ImplicitSpecies(C, 3.0, {[species1, species2]})"
+    assert repr(implicit_species) == expected_repr
+
+    # check that the __str__ method returns the expected string
+    expected_str = "C"
+    assert str(implicit_species) == expected_str
+
+
 def test_implicit_species_concentration():
     """Test that the concentration of an implicit species is computed
     correctly.